2Formal points
Detailed Design and Construction Documentation
Project Initiation and Conceptual Design

CPD – Condensation

2Formal points
Detailed Design and Construction Documentation, Project Initiation and Conceptual Design

When discussing the problem of condensation in Australia, most of the focus has been on walls, but one part of the building where condensation issues have been most evident is in the roof space. The increased emphasis on energy efficiency, has led to a subsequent increase in roof space condensation, which inevitably creates problems on internal surfaces, and represents a potential health hazard through the growth of hidden mould.

Our love of the low-pitched metal roof adds risks and challenges, not only at design stage but also during construction, getting these designs installed as intended. How well does your roofing contractor understand condensation and the products they are now dealing with? In this presentation, we look at issues and condensation risk mitigation strategies for all roof types.


• Andy Russell, Proctor Group

Andy has worked with building envelope specialists Proctor Group in the UK and in Japan, including a spell on secondment to a major prefabricated house manufacturer. In his suitcase on arrival in Australia in 2007 he carried some of the first vapour permeable ProctorWrap membranes seen here. He was a contributor to the first edition of the “Condensation Handbook” published by the ABCB in 2011 and has presented across Australia on this subject to BDAA members, and the AIA Refuel National Seminar Series. Andy is motivated, however possible, building by building, to improve the health and comfort of our built environment and positively impact the mental and physical health of current and future generations of their occupants.

• Joe Timi, CSR Bradford

With long experience in the building materials industry, Joe has a broad and detailed technical understanding of the use of insulation and ventilation technologies in various thermal, fire and acoustic applications across both commercial and residential construction. Joe’s role is to provide technical support in these segments for architects, consultants, designers, owner builders, contractors and various industry associations. Joe is particularly interested in reducing complexity on sites by combining the project’s requirements with my understanding of our products to streamline installation.


• Darragh O’Brien, Architect

ACCA COMPETENCY: Documentation & Design

Design – an activity involving interactive explorations and appraisals of a range of ideas and concepts, leading towards the development of coherent proposals for a project.d budgetary constraints, and must conform to relevant codes and industry standards. Where supplied by consultants, documentation compliance must be verified.

Documentation – the process of resolving, detailling and communicating an architectural project through all project stages. The modes of documentation include modeling, drawings, specifications and schedules that can be used in the construction, contract management and handover of the project. Documentation material must be consistent with design objectives and budgetary constraints and must conform to relevant codes and industry standards. Where supplied by consultants, documentation compliance must be verified.


By the end of this presentation, attendees will be able to:

• Explain what condensation is, and why condensation can and does occur in the built environment.

• Identify and explain the functionality and interplay of water, vapour, air, acoustic, thermal and fire control layers.

• Identify standard construction details for a given climate zone where there is potential for condensation to form and if this presents a risk.

• Understand the functionality and performance of different types of sarking membranes.

• Understand the role played by effective ventilation in managing condensation risk.

• Know when and where to seek assistance.

POINTS: 2 Formal CPD points